650C and 650B are certainly close enough in diameter that you could use the same tube; but most 650C tires are narrow racing tires, so that's probably all the bike shop had. You probably want something like this:
http://www.rivbike.com/products/show/inner-tube-650b/10-066 But someone else also mentioned that you can use a 26" tube and that would be pretty close too. On Sat, Jul 2, 2011 at 9:31 PM, Horace <max...@sdf.lonestar.org> wrote: > The problem isn't with the "650" part of the sizing. If you stick 650x18 > tubes into 650x36 tires, yes, the tubes will seem thin. > > > On Sat, Jul 2, 2011 at 6:55 PM, kevin lindsey <lindsey.ke...@gmail.com>wrote: > >> No doubt a dumb question, but here goes: is there a difference between >> 650 and 650B tubes? I just bought three sets of 650x18s for my >> Bleriot, only to find that they look suspiciously thin for my 36mm >> 650Bs. >> Anyone know where I can buy 650B tubes in northern Virginia? >> Thanks, >> Kevin >> >> -- >> You received this message because you are subscribed to the Google Groups >> "RBW Owners Bunch" group. >> To post to this group, send email to rbw-owners-bunch@googlegroups.com. >> To unsubscribe from this group, send email to >> rbw-owners-bunch+unsubscr...@googlegroups.com. >> For more options, visit this group at >> http://groups.google.com/group/rbw-owners-bunch?hl=en. >> >> > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
